So ive been wondering for a while, if i were to send lets say 500 transactions to the smallest probability bet on SatoshiDice individually with a php script or some such method and for the sake of saving what amounts to a fair percent of the money sent, didnt include a transaction fee on any of them, would they ever get included in the blockchain? or would they float around until someone decided to accept them into a block they've mined? If so, how long would that typically take and what would be the outcome if i included a miniscule fee instead (.00001 or some such number)?